<template>
  <div class="login">
    <el-row style="height: 100%;width: 100%;" :gutter="0">
      <el-col style="height: 100%" :span="14" :offset="0">
        <div class="login-logo">
          <div class="login-logo-title"></div>
          <div class="login-logo-body"></div>
        </div>
      </el-col>
      <el-col style="height: 100%" :span="10" :offset="0">
        <div class="login-box">
          <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form">
            <h3 class="title">预警终端管理系统</h3>
            <h4 class="title_login">登录</h4>
            <el-form-item prop="username">
              <el-input v-model="loginForm.username" type="text" auto-complete="off" placeholder="账号">

                <svg-icon slot="prefix" icon-class="user" class="el-input__icon input-icon" />
              </el-input>
            </el-form-item>
            <el-form-item prop="password">
              <el-input v-model="loginForm.password" :type="passwordOnOff ? 'password' : 'text'" auto-complete="off"
                placeholder="密码" @keyup.enter.native="handleLogin">
                <svg-icon slot="prefix" icon-class="password" class="el-input__icon input-icon" />
                <svg-icon slot="suffix" @click="hidden" icon-class="eye-close"
                  class="el-input__icon input-icon el-input__clear" />
              </el-input>
            </el-form-item>
            <el-form-item prop="code" v-if="captchaOnOff">
              <el-input v-model="loginForm.code" auto-complete="off" placeholder="验证码" style="width: 63%"
                @keyup.enter.native="handleLogin">
                <svg-icon slot="prefix" icon-class="validCode" class="el-input__icon input-icon" />
              </el-input>
              <div class="login-code">
                <img :src="codeUrl" @click="getCode" class="login-code-img" />
              </div>
            </el-form-item>
            <el-checkbox v-model="loginForm.rememberMe" style="margin:0px 0px 25px 0px;">记住密码
            </el-checkbox>
            <el-form-item style="width:100%;text-align: center;">
              <el-button round :loading="loading" size="medium"  style="width:80%;"
                @click.native.prevent="handleLogin">
                <span v-if="!loading">登 录</span>
                <span v-else>登 录 中...</span>
              </el-button>
              <div style="float: right;" v-if="register">
                <router-link class="link-type" :to="'/register'">立即注册</router-link>
              </div>
            </el-form-item>
          </el-form>
          <!--  底部  -->
          <div class="el-login-footer">
            <span>Copyright © 2018-2022 ruoyi.vip All Rights Reserved.</span>
          </div>
        </div>

      </el-col>
    </el-row>

  </div>
</template>

<script>
import { getCodeImg } from '@/api/login';
import Cookies from 'js-cookie';
import { encrypt, decrypt } from '@/utils/jsencrypt';

export default {
  name: 'Login',
  data() {
    return {
      codeUrl: '',
      loginForm: {
        username: '',
        password: '',
        rememberMe: false,
        code: '',
        uuid: '',
      },
      loginRules: {
        username: [
          { required: true, trigger: 'blur', message: '请输入您的账号' },
        ],
        password: [
          { required: true, trigger: 'blur', message: '请输入您的密码' },
        ],
        code: [{ required: true, trigger: 'change', message: '请输入验证码' }],
      },
      loading: false,
      // 验证码开关
      captchaOnOff: true,
      // 注册开关
      register: false,
      redirect: undefined,
      passwordOnOff: true,
    };
  },
  watch: {
    $route: {
      handler: function (route) {
        this.redirect = route.query && route.query.redirect;
      },
      immediate: true,
    },
  },
  created() {
    this.getCode();
    this.getCookie();
  },
  methods: {
    hidden() {
      this.passwordOnOff = !this.passwordOnOff;
    },
    getCode() {
      getCodeImg().then((res) => {
        this.captchaOnOff =
          res.captchaOnOff === undefined ? true : res.captchaOnOff;
        if (this.captchaOnOff) {
          this.codeUrl = 'data:image/gif;base64,' + res.img;
          this.loginForm.uuid = res.uuid;
        }
      });
    },
    getCookie() {
      const username = Cookies.get('username');
      const password = Cookies.get('password');
      const rememberMe = Cookies.get('rememberMe');
      this.loginForm = {
        username: username === undefined ? this.loginForm.username : username,
        password:
          password === undefined ? this.loginForm.password : decrypt(password),
        rememberMe: rememberMe === undefined ? false : Boolean(rememberMe),
      };
    },
    handleLogin() {
      this.$refs.loginForm.validate((valid) => {
        if (valid) {
          this.loading = true;
          if (this.loginForm.rememberMe) {
            Cookies.set('username', this.loginForm.username, { expires: 30 });
            Cookies.set('password', encrypt(this.loginForm.password), {
              expires: 30,
            });
            Cookies.set('rememberMe', this.loginForm.rememberMe, {
              expires: 30,
            });
          } else {
            Cookies.remove('username');
            Cookies.remove('password');
            Cookies.remove('rememberMe');
          }
          this.$store
            .dispatch('Login', this.loginForm)
            .then(() => {
              this.$router.push({ path: this.redirect || '/' }).catch(() => { });
            })
            .catch(() => {
              this.loading = false;
              if (this.captchaOnOff) {
                this.getCode();
              }
            });
        }
      });
    },
  },
};
</script>

<style rel="stylesheet/scss" lang="scss">
.login {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100vw;
  height: 100vh;
  // height: 100%;
  // background-image: url("../assets/images/login-background.jpg");
  // background-size: cover;
}

.title {
  margin: 0px auto 30px auto;
  font-size: 24px;
  font-family: SourceHanSerifSC-Heavy, SourceHanSerifSC;
  font-weight: 800;
  color: #000000;
  line-height: 35px;
  text-align: center;
}

.title_login {
  margin-top: 49px;
  font-size: 24px;
  font-family: PingFangSC-Regular, PingFang SC;
  font-weight: 400;
  color: #000000;
  line-height: 33px;
}

.login-logo {
  // width: 500px;
  position: relative;
  height: 100%;
  background-image: url('../assets/images/login-bg.png');
  background-size: cover;

  .login-logo-title {
    position: absolute;
    top: 7%;
    left: 6.2%;
    width: 418px;
    height: 51px;
    background-image: url('../assets/images/login-title.png');
    background-size: cover;
  }

  .login-logo-body {
    position: absolute;
    top: 25%;
    left: 50%;
    transform: translateX(-50%);
    width: 768px;
    height: 672px;
    background-image: url('../assets/images/login-body.png');
    background-size: cover;
  }
}

.login-box {
  position: relative;
  height: 100%;
}

.login-form {
  position: absolute;
  top: 23%;
  left: 50%;
  transform: translateX(-50%);
  border-radius: 6px;
  background: #ffffff;
  width: 380px;
  padding: 25px 25px 5px 25px;

  .el-input {
    height: 38px;

    input {
      height: 38px;
    }
  }

  .input-icon {
    height: 39px;
    width: 14px;
    margin-left: 2px;
  }
}

.login-tip {
  font-size: 13px;
  text-align: center;
  color: #bfbfbf;
}

.login-code {
  width: 33%;
  height: 38px;
  float: right;

  img {
    cursor: pointer;
    vertical-align: middle;
  }
}

.el-login-footer {
  height: 40px;
  line-height: 40px;
  position: fixed;
  bottom: 0;
  width: 100%;
  text-align: center;
  color: #fff;
  font-family: Arial;
  font-size: 12px;
  letter-spacing: 1px;
}

.login-code-img {
  height: 38px;
}
</style>
